The R90L is larger than a lot of thin clients, standing some 25cm (10") high. In comparison with
most thin clients covered on this website it is quite modern, my version being manufactured in February 2010.
I believe the range was launched towards the end of 2008 and most were retired by the end of 2012. (See bottom
of the page for details).

From Wyse's publicity data:

The new Wyse R90L thin client features high performance central and graphics processors coupled with full support
for multiple screens, and the best PC experience available on a thin computing platform with Wyse TCX software.

The Wyse documentation suggest that the R class L family share a common hardware base.
The variants are all to do with the amount of flash/RAM fitted and the embedded operating system.

If you compare the specifications for the 'L' and 'LE' you will find two significant differences.
The 'LE' includes two additions:

...from which we can deduce the 'E' bit of 'LE' probably stands for 'expansion' capability.

I also note that the 'L' version stands some 250mm high whilst the 'LE' version is 307mm high. I've
added some photos to the R90LE tab.

Beware: Model change/differences

I bought my Wyse R90L back in November 2012. In June 2015 I got an email from Rick who, on the basis of what
was documented here, bought an R90L on eBay. When he opened it up he was disappointed to find that there were no
PCI or SATA connectors fitted - in fact the board doesn't look as if it is tracked for the SATA connectors. A bit
of a bummer as he'd bought it for that expansion capability. It transpired that we'd bought slightly different
models - my label is on the left, his is on the right:

At the time Google failed to find me an answer to this anomaly.

I recently (February 2017) spent a while seeing what I could track down. Eventually I found an old
Wyse publicity leaflet dated 2008 where the R class 'L' family are shown as being
fitted with a 1GHz AMD Sempron processor. In the (undated) Dell Wyse R class
publicity leaflet that's the more usual one you come across
it's shown as being fitted with a 1.5GHz AMD Sempron processor.

From this it's clear that at some point Wyse updated the hardware without changing the model number.
At the time, based on the two labels, I assumed that you need to look at the part number to see what you're
getting. (Model numbers and part numbers are at the bottom of the page). I assumed, where there are two part numbers, the
lower numbered one is for the earlier model. What's documented here is the later version.

In May 2017 I heard from Timo who sent me photos of his
R90LEW (909542-02L, manufactured March 2011) showing it was fitted with a SATA socket. Previously
(October 2015) I'd heard from Onno that his R90LEW
(Same part# 909542-02L) had no SATA socket. From this I can only deduce that at some point Wyse updated
the motherboard to include SATA support without any change in the part number. From the limited
information in my possession this would appear to be between July 2009 and February 2010.

Specifications

The basic specs are:

Processor

Type Speed

AMD Sempron1GHZ or 1.5GHz

Memory

R00L
R10L
R50L
R90L
R90LW
R90L7

Flash/RAM
0/1GB or 0/2GB
128MB/512MB
1GB/1GB
1GB/1GB
2GB/1GB
4GB/2GB

Video

Chip Max resolution

AMD ATI 690E2560 x 1600 32-bit colour

Ports

Video
Network
USB
Serial
Parallel
PS/2

1 x DVI-I, 1 x DVI-D
10/100/1000
6 x USB2.0
2
1
Kybd & mouse

Power

Plug
Off Idle Running

Coax 5.5mm/2.5mm1 W14W22W

Dimensions

H x W x D (mm)

307 x 82 x 225

Operating systems:

R00L

Cloud PC of Wyse WSM.

R10L

Wyse Thin OS.

R50L

Suse Linux Enterprise.

R90L

Microsoft Windows XP Embedded.

R90LW

Microsoft Windows Embedded Standard 2009.

R90L7

Microsoft Windows Embedded Standard 7.

Power Supply

The power supply is a 19V 3.4A Liteon PSU that requires a clover-leaf style mains lead.
Note: The 19V rating. If, like me, you have a number of PSUs and thin clients
floating around you need to mark this PSU clearly in some way. I'm sure that those which
run from 12V - which is most of them - would not take too kindly to 19V. The coax plug
is 5.5mm/2.5mm.

Getting Inside

This is fairly straightforward. You need to remove the foot and the two screws towards the rear
of the unit - one on the top and one on the bottom. After that the side cover can be slid back and
removed. The plastic top and bottom covers are also loose at this time. When re-assembling the
unit the one thing you need to remember is that these need to be in place before you
slide the cover back on.

Motherboard

The motherboard is marked Rx0Ly and Rx0LEy next to a matrix which I guess must indicate
which options are fitted. From this I would assume that the motherboard is common across
the R series L/LE versions. The matrix is labelled at the bottom 'mercury' and 'pluto' which
I guess must be internal code names for the two product ranges. Some of the internal cabling
in the R90L does carry paper labels with 'mercury' printed on them.

There are also a series of small white connectors on the motherboard that probably support
various factory-fit options. We have BT CONN, Wi-FI CONN, DEBUG BOARD CONN, and three other
anonymous ones. Two of these (CN13 & CN15) are adjacent to the SATA connectors and I assume
are there to provide power to any internal SATA devices (SSDs?). (They provide 5V). From
a photo of the LE the other one would appear to be the connection point for the parallel port.

The base of the large heatsink is close to the surface of the board so I would assume the
chips underneath are mounted directly on the board and are not socketed. I haven't removed
the heatsink to check.

CPU

For those to whom it matters here is some detail from Linux's /proc/cpuinfo

Expansion

Flash: The flash is a "DiskOnModule" that interfaces via a 44-pin IDE connector.
In the photo it is the small blue board with the white label.

RAM: The RAM is a 240-pin DDR2 DIMM. The 1GB part fitted to my R90L is a
PC2-5300U-555-12-ZZ part (MT8HTF12864AY-667E1). It just so happens that I'd just
upgraded the memory in my main Shuttle Computer and so had a 2GB DIMM to hand - PNY 64B0QJTHE8G17.
That worked fine.

USB: There is a spare header on the circuit board close to the IDE connector. (Yellow
blob in the photograph). I plugged a standard 10-pin motherboard-to-two-USB-sockets cable into
it and found I'd gained an extra two USB ports. Interestingly these are not mentioned in the
R90L technical specification, but that for the LE does say 'four internal USB2.0 ports'.

PCI-E: There is a PCI Express x4 socket.

SATA: There are two SATA sockets on the motherboard each with an adjacent white socket
that could provide power for the SATA device. My brief experience here with the SATA sockets is
that anything plugged into the socket by the IDE connector is ignored - both the BIOS and by
Tiny Core Linux once it has booted. If a drive is plugged into the socket (CN18) near the back
panel, the drive appears in the BIOS against the IDE4 designation.
(See the Firmware tab).

The two white sockets (CN13 & CN15) can used to power the SATA device. On eBay these are
described as "4-pin Micro JST 1.25mm" connectors (or similar). Some years ago I picked up a pack
of 10 plugs with flying leads for a couple of dollars from a supplier in China. (See
here). The +5V supply is on the two pins marked by
the ^ symbol on the board.

Model Range

Well from Wyse's site here is a list of models and when they were retired. I've added a couple
of extra columns as to whether or not they have the PCIE socket fitted and SATA support. This is
based on information from others. I would expect all LE models to have the PCIE socket fitted.

[May 2017]. I've recently had conflicting reports about the presence/absence of the SATA port
on a R90LEW (Part # 909542-02L). This implies you can't rely on just the model number and may have
to go by the manufacturing date.

Model

Part #

EOL

PCIE

SATA

R10L

909531-xxL

8/5/13

Fitted

Yes

R00L

909529-xxL

??

Not Fitted

No

R00L

909549-xxL909559-xxL

08/09/12

R00LE

909530-xxL

07/26/12

R50L

909526-xxL

01/24/10

R50L

909546-xxL

11/15/12

Fitted

Yes

R50LE

909524-xxL

7/26/12

R90L

909527-xxL909547-xxL

04/18/12

Not FittedFitted

NoYes

R90LE

909525-xxL909535-xxL

04/18/12

R90LE

909560-xxL

04/18/12

R90LEW

909542-xxL

7/26/12

Fitted

Yes/No

R90LW

909533-xxL909543-xxL

11/15/12

R90L7

909544-xxL

11/15/12

Fitted

Yes

R90LE7

909545-xxL

7/26/12

If you can fill in the blanks above please email me using the link below. (Thank you
Hanno-Ivar for being the first to do this).